diff --git a/lib_com/options.h b/lib_com/options.h
index 7196cc8b24ba02e7c8f6e2c8cd49f0227f1621fe..e490d7750e1faa6e709a0b9f98caa506c8c7fd5e 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -174,11 +174,12 @@
 /* any switch which is non-be wrt selection floating point code */
 /* all switches in this category should start with "NONBE_" */
 
+#define NONBE_MDCT_ST_DTX_SKIP_DEWHITENING_OF_NOISE_SHAPES_ON_SID_FRAMES /* FhG: issue 1133: skip de-whitening of bg noise shape after frameloss period if the first good frame is an SID */
+#define NONBE_MDCT_ST_PLC_DO_NOT_SCALE_OLD_OUT_IF_FIRST_GOOD_IS_SID /* FhG: issue 1133: in TCX PLC, don't scale hHQ_core->old_out after applying fade to noise in burst frame error */
 #define NONBE_FIX_1128_OSBA_EXT_OUTPUT_ORDER                  /* FhG: issue 1128: set output ambisonics order to input order for EXT output */
 #define NONBE_FIX_1052_SBA_EXT_FIX                            /* VA: SBA external output support fix - do not overwrite "output_config" parameter */
 #define NONBE_FIX_1130_DIV_ZERO_LEV_DUR                       /* VA: issue 1130: avoid div by zero in L-D by thresholding R[0] to a min value of 100.0 */
 
-
 /* ##################### End NON-BE switches ########################### */
 
 /* ################## End DEVELOPMENT switches ######################### */
diff --git a/lib_dec/ivas_core_dec.c b/lib_dec/ivas_core_dec.c
index 73c500115395c1390b6b14d6124b1abde0029331..47e6bf25b47d456969239e4457f10c3d9afb6d38 100644
--- a/lib_dec/ivas_core_dec.c
+++ b/lib_dec/ivas_core_dec.c
@@ -189,7 +189,11 @@ ivas_error ivas_core_dec(
             st->flagGuidedAcelp = 0;
         }
 
+#ifdef NONBE_MDCT_ST_PLC_DO_NOT_SCALE_OLD_OUT_IF_FIRST_GOOD_IS_SID
+        if ( !st->bfi && st->prev_bfi && st->total_brate > SID_2k40 && ( st->last_core_bfi == TCX_20_CORE || st->last_core_bfi == TCX_10_CORE ) && st->hTcxDec != NULL )
+#else
         if ( !st->bfi && st->prev_bfi && ( st->last_core_bfi == TCX_20_CORE || st->last_core_bfi == TCX_10_CORE ) && st->hTcxDec != NULL )
+#endif
         {
             v_multc( st->hHQ_core->old_out, st->hTcxDec->conceal_eof_gain * st->last_concealed_gain_syn_deemph, st->hHQ_core->old_out, st->hTcxDec->L_frameTCX );
             v_multc( st->hHQ_core->old_outLB, st->hTcxDec->conceal_eof_gain * st->last_concealed_gain_syn_deemph, st->hHQ_core->old_outLB, st->L_frame );
@@ -402,10 +406,16 @@ ivas_error ivas_core_dec(
         {
             updateBuffersForDmxMdctStereo( hCPE, output_frame, output, synth );
         }
+#ifdef NONBE_MDCT_ST_DTX_SKIP_DEWHITENING_OF_NOISE_SHAPES_ON_SID_FRAMES
 
+        /* On first good active frame after frameloss undo the whitening of the bg noise shape */
+        if ( sts[0]->core_brate > SID_2k40 && sts[0]->bfi == 0 && sts[0]->prev_bfi == 1 )
+        {
+#else
         if ( sts[0]->bfi == 0 && sts[0]->prev_bfi == 1 )
         {
             /* On first good frame after frameloss undo the whitening of the bg noise shape */
+#endif
             for ( n = 0; n < n_channels; ++n )
             {
                 if ( sts[n]->last_core_bfi != ACELP_CORE )
diff --git a/scripts/config/self_test.prm b/scripts/config/self_test.prm
index fad98f82689a4b9d87d3bfc487f1177e34762253..acbef956861a9e5f176ec97c1baf312e3fb792af 100644
--- a/scripts/config/self_test.prm
+++ b/scripts/config/self_test.prm
@@ -275,6 +275,11 @@ eid-xor -fer -vbr -bs g192 -ep g192 bit ../scripts/dly_error_profiles/ep_5pct.g1
 eid-xor -fer -vbr -bs g192 -ep g192 bit ../scripts/dly_error_profiles/ep_5pct.g192 bit_error
 ../IVAS_dec MONO 48 bit_error testv/stvST48n.wav_stereo_48000_48-48_DTX_MONO_FER5.tst
 
+// stereo at 48 kbps, 48 kHz in, 48 kHz out, DTX on, FER with burst error before SID
+../IVAS_cod -stereo -dtx 48000 48 testv/stvST48n.wav bit
+eid-xor -fer -vbr -bs g192 -ep g192 bit ../scripts/dly_error_profiles/ep_5pct_burst.g192 bit_error
+../IVAS_dec stereo 48 bit_error testv/stvST48n.wav_stereo_48000_48-48_DTX_stereo_FER5_burst.tst
+
 // stereo at 48 kbps, 32 kHz in, 32 kHz out, DTX on, MONO out
 ../IVAS_cod -stereo -dtx 48000 32 testv/stvST32n.wav bit
 ../IVAS_dec MONO 32 bit testv/stvST32n.wav_stereo_48000_32-32_DTX_MONO.tst
diff --git a/scripts/config/self_test_ltv.prm b/scripts/config/self_test_ltv.prm
index 9003fec9a1cdfc456ab8efbd601e99ec3931d2e5..45cc65beb1cb7d8242e834db42f579c9d6eadc14 100644
--- a/scripts/config/self_test_ltv.prm
+++ b/scripts/config/self_test_ltv.prm
@@ -274,6 +274,11 @@ eid-xor -fer -vbr -bs g192 -ep g192 bit ../scripts/dly_error_profiles/ep_5pct.g1
 eid-xor -fer -vbr -bs g192 -ep g192 bit ../scripts/dly_error_profiles/ep_5pct.g192 bit_error
 ../IVAS_dec MONO 48 bit_error testv/ltv48_STEREO.wav_stereo_48000_48-48_DTX_MONO_FER5.tst
 
+// stereo at 48 kbps, 48 kHz in, 48 kHz out, DTX on, FER with burst error before SID
+../IVAS_cod -stereo -dtx 48000 48 testv/ltv48_STEREO.wav bit
+eid-xor -fer -vbr -bs g192 -ep g192 bit ../scripts/dly_error_profiles/ep_5pct_burst.g192 bit_error
+../IVAS_dec stereo 48 bit_error testv/ltv48_STEREO.wav_stereo_48000_48-48_DTX_stereo_FER5_burst.tst
+
 // stereo at 48 kbps, 32 kHz in, 32 kHz out, DTX on, MONO out
 ../IVAS_cod -stereo -dtx 48000 32 testv/ltv32_STEREO.wav bit
 ../IVAS_dec MONO 32 bit testv/ltv32_STEREO.wav_stereo_48000_32-32_DTX_MONO.tst
diff --git a/scripts/dly_error_profiles/ep_5pct_burst.g192 b/scripts/dly_error_profiles/ep_5pct_burst.g192
new file mode 100644
index 0000000000000000000000000000000000000000..6c0655b3de98dd2cf45e67bd7d4985955bd2ad15
--- /dev/null
+++ b/scripts/dly_error_profiles/ep_5pct_burst.g192
@@ -0,0 +1 @@
+!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k k!k!k!k k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k k!k!k!k!k!k k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k k!k!k!k!k!k!k!k!k!k!k!k!k!k k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k k!k!k!k!k!k!k!k!k!k!k k!k!k!k!k!k!k!k!k k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k k!k!k!k!k!k!k!k!k!k k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k k k k k k k k k!k!k!k!k!k!k!k!k!k!k!k!k!k k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k k!k!k!k!k k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k!k k!k!k!k!k!k k!k!k k!k!k
\ No newline at end of file